Just remember, Christmas night, come back on and ask all the questions needed if you run into any problems getting set up. Pity no evening Moon, nor evening Saturn that night. Go for Jupiter and Venus in the dusk - the brighest points of light to the West! Then as it gets dark, try 47 Tucanae and the Tarantula nebula (NGC 2070 in the LMC = Large Magellanic Cloud). You should be able to see them.
You might want to print out the Southern Hemisphere Dec 2008 map from this site:-
http://www.skymaps.com/downloads.html
And have it handy to help find things. Note that it doesn't show you the location of the Moon or the planets.
Happy Christmas Viewing!